Operation Of Other Electronic Components - Brother CE-5500PRW Service Manual

Outline of Mechanism Operation of other electronic components
Start/Stop (SS) button. . . . . . . . . . . . . . . . . . Button for starting and stopping the sewing machine. The
Reverse/Reinforcement stitch button . . . . . . This button is for reverse stitching or ending a seam. If the
Needle position button . . . . . . . . . . . . . . . . . This button toggles the needle between the up and down
Operation panel keys . . . . . . . . . . . . . . . . . . Input for pattern selection and conditions necessary for sewing.
Speed control lever. . . . . . . . . . . . . . . . . . . . This lever controls the speed of sewing.
BH (button hole) switch . . . . . . . . . . . . . . . . This switch is for detecting the forward and rear ends of the
BH (button hole) lever switch . . . . . . . . . . . This switch detects whether the BH lever is up or down.
Needle position (NP) sensor. . . . . . . . . . . . . This sensor detects the drive timing of each pulse motor and the
Speed sensor. . . . . . . . . . . . . . . . . . . . . . . . . This sensor detects the rotational speed of the main motor. It
PF (Presser foot) switch . . . . . . . . . . . . . . . . This switch detects the vertical position of the presser foot lever.
BW (bobbin winder) switch . . . . . . . . . . . . . This switch detects whether the bobbin is set for winding or not,
Foot controller jack . . . . . . . . . . . . . . . . . . . This is the jack for plugging in the foot controller in use.
LED lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . White LED lamps for illuminating the work space.
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machine operates at a slow speed while the button is being held
down.
button is pushed, it makes three to four stitches in that place and
stops automatically. It sews in the reverse with slow speed while
the button is held down.
positions.
button hole according to the BH presser foot and lever.
vertical stop of the needle position. It detects the upper shaft
angle of rotation by using a shutter attached to the upper shaft
and an opitical sensor.
detects the upper shaft rotational speed by using a shutter
attached to the upper shaft and an optical sensor.
when the bobbin thread is wound.